The current Lexus LS covers up to 1,025 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1990–1995 | Combustion | 773 |
| 1995–1997 | Combustion | 825 |
| 1997–2000 | Combustion | 697 |
| 2000–2003 | Combustion | 694 |
| 2003–2006 | Combustion | 737 |
| 2006–2013 | Combustion | 903 |
| 2013–2018 | Combustion | 977 |
| 2018–2021 | Combustion | 1,262 |
| 2021–2025 | Combustion | 1,025 |
Range is calculated from each variant’s fuel tank capacity and combined-cycle consumption (tank ÷ consumption × 100), for the best-range variant in each generation — real-world range varies with driving style and conditions. Figures outside a plausible range for the tank size are excluded.